Device for applying hooked clasps



May 5, 1931. s, T Y FF 1,804,071

DEVICE FOR APPLYING HOOKED CLASPS Filed Dec. 15, 1928 3 Sheets-Sheet l 5. aha le zmw May 5, 1931. s. TElHAYEFF 7 DEVICE FOR APPLYING HOOKED CLASPS Filed Dec. 13. 1928 3 Sheets-Sheet 2 May 5, 1931. s, TCHAYEFF 1,804,071

DEVICE FOR APPLYING HOOKED CLASPS Filed Dec. 13, 1928 3 Sheets-Sheet 3 Patented May 5, 1931 UNITED STATES. PATENTQFFECE V SERGE TCHAYEFF, OF PARIS, FRANCE DEVICE FOR APPLYING HOOKED CLASPS Application filed December 13, 1928, Serial No. 325,889, and in France October 3, 1928. i i i The present invention relates to the construction and arrangement of devices for attaching the hooked clasps used in the manufacture of'boards and beams consisting of 5 straw or reeds, suitably compressed and reinforced.

The invention chiefly concerns the apparatus serving to attach the said clasps to parallel iron'wires disposed on the surfaces of two parallel rigid walls between which are periodically introduced at a strong pressure suitable pieces of elastic material such as straw, reeds and the like, so thatthe resulting fiat obj ects'or boards will not be subject to distortionand will preserve their original thickness, and will remain rigid by reason of the iron wire strengthening members.

The apparatus for fastening the said hooked clasps in position consists preferably of a device having a reciprocating motion upon'which the clasp, supplied from a feeding device, will be disposed, which device engages the aforesaid parallel wires at the end of its stroke, thus attaching the said clasp to the wires in such manner that it cannot return during the back motion of the said attaching device.

The said apparatus can be operated by hand or by the machine used to manufacture the said boards, by the use of gear affording the reciprocating motion.

The mechanism comprises forks consisting of fiat members which are given a reciprocating motion and are slotted at the ends so as td engage the parallel wires upon which the hooked clasps are to be placed. Upon the said forks are mounted suitable pivoted levers whereof one branch is in contact with a spring placed between this branch and a stationary piece of suitable shape, the whole device being covered by a fiat piece which has the same width as the piece forming the fork and is also slotted. v

The hookedclasps are piled upon a vertical flatbar, and they descend by their own weight when'the lower clasp is removed. To prevent the descent of several clasps at a'time, the apparatus comprises an arrangement bywhich a tongue having a reciprocating motion provides for the descent of only asingle clasp upon the said fork, the said tonguebeing serted between the bottom clasp and those above 1t. The said tongue is displaced below the clasp-holding bar and is actuated by a pivoted lever under the control of said fork by means of a cam outline on the side of the fork.

When the clasp is separated from the pile by the said tongue, it'is received by the end'of pivoted lever situated below the support of the fork, and said lever,urged byaspr-ingpco takes a position immediately below thever tical bar guiding the clasps, and it engages in the slot of the fork. a l The said invention will be described with reference to the accompanying drawings. 05 Figure 1 is an elevational view of a mold or form for the manufacture of a board ofa given size and shape. p Figure 2 is the corresponding plan view.

Figure 3 is a perspective View of the board, 7 l

with the clasps in position upon the reinforcing wires. Y i

Figure 4 is an elevational view of the mechanism. V r

Figure 5 is the corresponding plan View. Figure '6 is a section on the line A-A 0 Figure 4.

I igs. 7, 8 and 9 are explanatory diagrams. To properly understand the method 0f 'attaching the hooked clasps', I will first describe the manufacture of a Hat piece consisting of straw, reeds or the like, which are suitably compressed. 1 1

' A machine of any type and driven bysuitable means serves to compress the material in the box or mold a (Figs. 1 and 2) which comprises the two walls 6-0 connected to-[ gether by side walls so as to determine the width of the flat piecewhich is to be produced. The spacing between band 0' represents the thickness of the flat piece'or board. In the mold a and against the walls bc are disposed'the iron wires, (Z which may have any desired spacing, and said wires are well stretched by the proper means, being also disposed in such manner as to follow the board during its manufacture. Y

The straw is engaged and compressed in' the molda, and between the wires d which are disposed against the walls bc, and in order to prevent the wires d from separating when the finished board issues from the machine, they must be properly held together in pairs, and this is effected by the use of the hooked clasps 7 which are engaged upon the said wires.

For this purpose, the walls b 0 of the mold are provided with the aperture (1 for the insertion of the tool devices by which the clasps f are engaged upon the wires d.

In Figs. 1 and 2, the mold is supposed to comprise three rows of wires d, and it is thus provided with three apertures in each wall 6 and 0, these being placed opposite one another in pairs, so that the said clasp tool an be i serted.

Fig. 3 shows the olasps in position on the wires d,

I will now describe the mechanism by which, the said clasps are attached to the wires.

The hooked clasps are piled upon a guide strip 2 of flat bar iron which has the vertical position and is bolted to an angle bracket 3 mounted on the main plate or table 4 supportinghe mechani m In the plate is provided a s t 4 in wh ch is movable by a reciprocating motion by the general driving gear of the machine, a flat member 5 of special shape which constitutes the fork er tool by which the olasps 1 are put in pl ce. up n he wires 4 The flat member or fork 5 consists of two bars 5 5 of suitable shape which are mounted together by bolts upon a central fiat bar 6, and whose dimensions are such as to leave a slot 7 of a given length at the front part.

Upon w th bar 5 5. is mounted a member of special form 89 in opposite position. One member 8 is pivotally mounted on an axle, 10 undQ J the controlof a spring- 11 in contact with one of its ends, and the second member 9 is rigidly secured to the bars 5 5 y the screws 12-, The sp t 1 en to pivot the member 8 so as to bring its outer nd into contact wi t memb 9. twe n the e. two mem e s i engag h hooked clasp 1, which is held in place by the pressureof the spring 11 until it becomes attached t the w es (1- The two members 8 and 9 are covered by a plate 14; of the same; width as the bar 5 and slotted to correspond to the space of the fork 7.

Upon the plate 4 is transversely movable with reference to the fork 5 a tongue 13 insorted through an aperture in the guide band 2 used for the, clasps 1, so as to separate the lower clasp from the pile of clasps. The low 1%" end 0 th Said g ide band makes light contact wi h the upper face of. the fork 5, so that the hook 1 separated by the tongue 13 will not be. remo ed by he said n 2 i spite of thev m ti n f; he fork, and t i i p vail until a certain moment. The said tongue 13 is moved by a lever 15 which is pivoted at 16 to the plate 4 and whereof one end is provided with a roller 17 controlled (by means of a spring 18) by a ramp 19 formed on one side of the fork 5.

Below the support 4 is pivoted at 21 a lever 20 whose end, having the same outline as the guide band 2, will enter the slot of the fork 5 when the latter is drawn back, thus extending the guide band 2 below the tongue 13. The end 28 of the lever 20 which as above stated has the Same size as the guide band 2, will thus receive the clasp 1 which is separated from the pile when the tongue 13 is drawn back, and will hold it until the displacement of the fork 5 causes the clasp 1 to be engaged between the members 8 and 9.

The operation is as follows:

The mechanism is shown in Figs. 1 and 5 in the mean position, that is, the clasp 1 which is released from the guide band 2 and from the end 23 of the lever 20 now rests upon the fork 5 and is held between the members 8 and 9 but is not yet engaged upon the vertical wires (Z.

As will be observed, the clasp is held between the pivoting member 8 and the fixed member 9 by the action of the spring 11. The fork 5 continues. to move according to the arrow at until the clasp 1 is placed upon the two vertical wires cZ-al upon which it is to be engaged.

The clasp 1 first meets one of the wires (l and passes around it when impelled by the fork, and due to the spring 11 which allows the pivoting member 8 to yield under the pressure; the clasp then meets the second wire d, passing around this wire and engaging therewith at its front end, the rear end being in position upon the first-mentioned wire d.

When the clasp 1 is entirely engaged upon the wires 03, the fork 5 returns to the rear in the direction of the arrow 5, thus releasing the said clasp from the members 8 and 9. During this return stroke, the fork slot 7 then comes above the lever 20 which turns about the axle 21 by the spring 22 so that its end 23 comes in line with the guide band 2. hen the end A of the fork 5 is situated below the band 2 (Figure 8) the clasp 1 which is below the tongue 13 will drop upon the end 23 of the lever 20. At this time, the forward stroke of the fork again takes place, in the direction of the arrow a. Since the clasp l is held fast by the end 23 of the lever 20, the fork will move without drawing the clasp with it, until it is engaged between the members 8 and 9, Figure 9. The slot 7 being unobstructed, the end 23 of the lever 20 makes contact with the lower face of the fork 5., and since the lever 20 now descends, it is released from the clasp 1, and the latter is now drawn forward by the fork,

At the end of the forward stroke, and while the clasp 1 is being attached to the wires (1, y i

the ramp 19 of the fork 5 makes contact with the roller 17 of the lever 15 which pivots on its axle 16 by the action of the spring 18, thus driving back the tongue 13 so as to release the lower clasp from the pile on the band 2. The cycle of operations is thus continued in the same manner.

For the case in which a clasp is improperly placed on the wires d and is hence drawn back when the fork 5 returns, I have provided a device comprising a lever 24 pivoted at 25, whose end 26 takes up the clasp and expels it from the fork.

Claims:

1. A device for applying hooked clasps upon parallel wires including a movable clasp carrier having a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during 7 application of the latter to the parallel wires,

said holding means including a yieldable member permitting lateral displacement of the clasp during application to the parallel wires.

2. A device for applying hooked clasps upon parallel wires including a. movable clasp carrier having a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during application of the latter to the parallel wires,

a support for a plurality of clasps, and

'means associated with the support controlling the delivery of clasps to the carrier.

3. A device for applying hooked clasps upon parallel wires including a movable clasp carrier having a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during application of the latter to the parallel wires, a support for a plurality of clasps, a member normally obstructing the movement of the clasps, and means controlled by said carrier for displacing said member to permit individual delivery of the clasps to the carrier.

4. A device for applying hooked clasps upon parallel wires including a movable clasp carrierhaving a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during application of the latter to the parallel wires, a support movably retaining a plurality of clasps in proximity to the carrier, and a member mov able into the slot in the carrier when the latter is moved rearwardly to present a continuation of said support and guiding the clasps to the carrier. o

5. A device for applying hooked clasps upon parallel wires including a movable clasp carrier having a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during application of the latter to the parallel wires, a support for a plurality of clasps, means actuated by said carrier to control the delivery of clasps from the support to the carrier, and a member movable into the slot of the carrier to present a continuation of said support during the delivery of clasps from the support to the earner.

6. A device for applying hooked clasps upon parallel wires including a movable clasp carrier having a slot at one end to receive the parallel wires during forward movement of the carrier, and means on said carrier to releasably hold the clasp during application of the latter to the parallel wires, and means coacting with the carrier to forcibly eject a clasp returning with the rearwardly moving carrier.

In testimony whereof he has signed this specification.

SERGE TCHAYEFF. 

